2,454 research outputs found

    Marxism

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    Decisions and indecisions: political and intellectual receptions of Carl Schmitt

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    The fetish of geopolitics: reply to Gopal Balakrishnan

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    IR theory, historical materialism, and the false promise of international historical sociology

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    The three-decades old call for an inter-disciplinary rapprochement between IR Theory and Historical Sociology, starting in the context of the post-positivist debate in the 1980s, has generated a proliferating repertory of contending paradigms within the field of IR, including Neo-Weberian, Post-Structuralist, and Constructivist approaches. Within the Marxist literature, this project comprises an equally rich and diverse set of theoretical traditions, including World-Systems Theory, Neo-Gramscian IR/IPE, the Amsterdam School, Political Marxism, Neo-Leninism, and Postcolonial Theory. More recently, a “third wave” of approaches has been announced from within the field of IR, suggesting to move the dialogue from inter-disciplinarity towards an integrated super-discipline of International Historical Sociology (IHS). This proposition has been most persistently advanced by advocates of the theory of Uneven and Combined Development (UCD), claiming to constitute a universal, unitary and sociological theory of IR. This article charts the intellectual trajectory of this ongoing IR/HS dialogue. It moves from a critique of Neo-Weberianism to a critique of UCD against the background of the original promise of the turn in IR to Historical Sociology: the supersession of the prevailing rationalism, structuralism, and positivism in extant mainstream IR approaches through the mobilization of alternative and non-positivistic traditions in the social sciences. This critique will be performed by setting UCD in dialogue with Political Marxism. By anchoring both approaches at opposite ends on the spectrum of Marxist conceptions of social science – respectively the scientistic and the historicist - the argument is that UCD reneges on the promise of Historical Sociology for IR by re-aligning, first by default and now by design, with the meta-theoretical premises of Neo-Realism. This is most visibly expressed in the articulation of a deductive-nomological covering law, leading towards acute conceptual and ontological anachronisms, premised on the radical de-historicisation of the fields of ontology, conceptuality and disciplinarity. This includes the semantic neutering and hyper-abstract re-articulation of the very category, which in IR’s self-perception lends legitimacy to its claim of disciplinary distinctiveness: the international. The article concludes by suggesting that an understanding of Marxism as a historicist social science subverts all calls for the construction of grand theories and, a fortiori, a unitary super-discipline of IHS, premised on a set of universal, space-time indifferent, and abstract categories that hold across the spectrum of world history. In contrast, recovering the historicist credentials of Marxism demands a constant temporalisation and specification of the fields of ontology, agency, conceptuality and disciplinarity. The objective is to lay the foundations for a historicist social science of geopolitics

    Extracellular polymeric bacterial coverages as minimal area surfaces

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    Surfaces formed by extracellular polymeric substances enclosing individual and some small communities of {\it Acidithiobacillus ferrooxidans} on plates of hydrophobic silicon and hydrophilic mica are analyzed by means of atomic force microscopy imaging. Accurate nanoscale descriptions of such coverage surfaces are obtained. The good agreement with the predictions of a rather simple but realistic theoretical model allows us to conclude that they correspond, indeed, to minimal area surfaces enclosing a given volume associated with the encased bacteria. This is, to the best of our knowledge, the first shape characterization of the coverage formed by these biomolecules, with potential applications to the study of biofilms.Comment: 4 pages, 9 figures. v2: minor changes. v3: Terminology changes and extra references included. v4: Final versio

    Early gene expression divergence between allopatric populations of the house mouse (Mus musculus domesticus)

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    Divergence of gene expression is known to contribute to the differentiation and separation of populations and species, although the dynamics of this process in early stages of population divergence remains unclear. We analyzed gene expression differences in three organs (brain, liver, and testis) between two natural populations of Mus musculus domesticus that have been separated for at most 3000 years. We used two different microarray platforms to corroborate the results at a large scale and identified hundreds of genes with significant expression differences between the populations. We find that although the three tissues have similar number of differentially expressed genes, brain and liver have more tissue–specific genes than testis. Most genes show changes in a single tissue only, even when expressed in all tissues, supporting the notion that tissue–specific enhancers act as separable targets of evolution. In terms of functional categories, in brain and to a smaller extent in liver, we find transcription factors and their targets to be particularly variable between populations, similar to previous findings in primates. Testis, however, has a different set of differently expressed genes, both with respect to functional categories and overall correlation with the other tissues, the latter indicating that gene expression divergence of potential importance might be present in other datasets where no differences in fraction of differentially expressed genes were reported. Our results show that a significant amount of gene expression divergence quickly accumulates between allopatric population
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